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Title:
OBSTACLE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/075044
Kind Code:
A1
Abstract:
By sweeping each frequency (F1) of a plurality of transmission signals (TS), a transmitter group (21) increases or decreases frequencies (F1) over time within a high-frequency band (HB) or low-frequency band (LB) in relation to a reference natural vibration frequency (F0_0) on the basis of a prescribed pattern. The width (β) of an overlapping frequency band (SB2) of the plurality of transmission signals (TS) is set to at most half of the width (α) of the sweeping frequency bands (SB1) of the plurality of transmission signals (TS).

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Inventors:
URAKAWA YUKI (JP)
INOUE SATORU (JP)
Application Number:
PCT/JP2019/041078
Publication Date:
April 22, 2021
Filing Date:
October 18, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S15/87; G01S15/32
Foreign References:
JP2018059828A2018-04-12
JP2002131427A2002-05-09
JP2012168122A2012-09-06
US20110273324A12011-11-10
JP2019066383A2019-04-25
JP2019035755A2019-03-07
JPH10132930A1998-05-22
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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